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Finding the Fourth Proportional to 70,647.60, 105,905.52 and 23,867.76

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Solution

The fourth proportional to 70,647.60, 105,905.52 and 23,867.76 is: 35,779.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,647.60 : 105,905.52 = 23,867.76 : x
  2. Step 2: Convert to fraction form
    70,647.60/105,905.52 = 23,867.76/x
  3. Step 3: Cross multiply
    70,647.60x = 105,905.52 × 23,867.76
  4. Step 4: Simplify right side
    70,647.60x = 2,527,727,534.04
  5. Step 5: Solve for x
    x = 2,527,727,534.04/70,647.60
  6. Step 6: Final answer
    x = 35,779.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.